63336340 has 12 divisors (see below), whose sum is σ = 133006356. Its totient is φ = 25334528.

The previous prime is 63336337. The next prime is 63336347. The reversal of 63336340 is 4363336.

It can be written as a sum of positive squares in 2 ways, for example, as 30869136 + 32467204 = 5556^2 + 5698^2 .

It is a super-2 number, since 2×63336340² = 8022983929191200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63336299 and 63336308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63336347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583389 + ... + 1583428.

It is an arithmetic number, because the mean of its divisors is an integer number (11083863).

Almost surely, 2^63336340 is an apocalyptic number.

It is an amenable number.

63336340 is an abundant number, since it is smaller than the sum of its proper divisors (69670016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63336340 is a wasteful number, since it uses less digits than its factorization.

63336340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166826 (or 3166824 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

The square root of 63336340 is about 7958.4131584129. The cubic root of 63336340 is about 398.6125681462.

Adding to 63336340 its reverse (4363336), we get a palindrome (67699676).

The spelling of 63336340 in words is "sixty-three million, three hundred thirty-six thousand, three hundred forty".